Alexander hendry



2 Sheets-Sheet'. 1.

A. HENDRY. STEAM AND GALOEIC` ENGINE.

No. 98,061. Patented Dec. 21. 186.9.

IIIIIIIIIIIIIIIIW my v A 2 Sheets-Sheet 2.

A.. HBNDRY. STEAM AND oALoEIG ENGINE.

No. 98,061'. Patented Deo. 21, 1869.

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Letters .Patent No. 98,061, dated December vv2.1, 1869.

sT'M AND' estone-ENGINE.

The Schedule referred to' in these Letterslatent and -rrmkirxg part ofthe saine.

To all 'whom it may concern Be it known that I, ALEXANDER HENDRY, ofVictoria, in the Province ot' BiitislrOolumbia, have invented a new4andtuseful Improvement in Steam and Calorie-Engines; 'and l. do herebydeclare that the following isla fuli,.`c iear, and exact descriptionthereof, which willenable others skilled in the art to. make and use thesame, reference being had tothe 4accompanying drawings, ibrming part ofthis specification.

rlhis invention -relates to improvements in engines for obtaining powerby heat, and is designed to provide a means of utilizing the power ofthe gases given off by combustion, either alone or in connection withsteam generated at the same time, and superheated and mixed withthe-said gases. The invention `cons stsmiu an improved arrangement ofjacketed cylinders and jaekcted furnace, constituting` a water-space forgenerating steam, by the radiating bea't ot' the furnace, and arrangedto envelop thecyliuders with water to prevent injury by the gases andheat.

Also, an improved arrangement of chambered pistous, for keeping the samefilled with water to counteract the action ofthe heat upon the same.

Also, certain improvements in chambered valves, rods, andvalve-operating devices, the said chambered valves and rods beingvsupplied with water, also to prevent injury by the heat and the gases.

Figure 1 represeuts'a longitudinal 'sectional elevation of my improvedengine, and

Figure 2 represents a transverse section 'of the salue. A v

Similar letters of reference indicate corresponding parts.

A represents an enclosed furnace, preferably of cylindrical form abovethe coal-spaee,vertical in position, and ot" suiiic'ient height in thechamber B, to produce the best results in combust-iom 'v This furnace issurrounded by a vertical. jacket, C, which is pendent from the centre ofa hor'irontal` jacket, E, supported in any suitableway, and enclosing,

the cylinders F F1, providing a water-space, G, surrounding both thefurnace and the cylinders, one in eaclrend of the jacket E, and providedlwith packingglands H, at the ends ofthe jacket, where .they openthrough the heads thereof. A

l represents hollow'pistons, one for each cylinder, and provided withchambers K, for taking up as much of the central space as it is notneedful should be occupied by waters The pistons have tubes L, leadingfrom the waterspace 0f the jacket E to the intcrier, keepinga constantcommunication and circulation of water vin the pistons. r) he said pipeswork through st-uing-boxes in the ends of the jackets E.

The water is supplied to the jacket C by a pipe; A

M, leading i'rom a supply-tank, shown in dotted lines, and the air issupplied to the .furnace-from the same tank by .pipes leading from thetop to the tuyeres 1.

The water and air are supplied to this. tank by a pump, in any suitableway. The level of the water in the jackets O and E is intel-ided to begoverned by the lieight'in this tank; and to regulate it here, anescapefvalve, Q, and float R, are provided` which open'the passage when.the water rises too high.

The steam generated in thejnckets is conducted by a pipe, S, from thesteam-space,in the upper extern, sion oi' thejacket C, into thecombustion-chamber B, where it is superheated, and' from which it isadmitted z ilternateljghy valves F2 and 1*",to the cylinders,`F and F1,respectively, andl exhausted similarly by the. valves F* and F5, throughthe lateral pipes F5 and F7, j These supply and exhaustvalves areattached to hollow stems or rods a, rising up through the cylln# ders,pipes ZJ, in the jacket C, packing-glands d, above and into an elevatedwater-tank e, supportedin pillars f, restingon the top of the -jacketC.' Glands g are also provided in the bottoni of this tank.

The rods have spring-pressure applied at the top ends, by a spring, h,and bart', to counteract the upward pressure on the valves. In this waythe valve-rods are provided with a circulation of water to protect themt'i'ointhe heat.

vThe inner ends of the pistons are recessed, as shown at k, and indottediines at I, to provide room for the valve-rods, which pass throughthe cylinders. The lpistonsareconnected attheir outer ends tocross-heads T, which are connected, by rods U,working lin guides on thesides of the jacket E, and carrying connecting-rods V, one onfeach side,which are connected to the crank-shaft V.

From this shaft an inclined shaft, X, turned by suitable bevel-gearsjisarranged for working the cam-- shaft Z, which has apair of mms, Z, setopposite to each other, so that one set ntf-'valves will be raised,

"while the other. is at rest, by acting' on the wipers Z2 ofthe.valve'stems.

These wipers'vhave tappetsjZ, which I propose to arrangeso as to bemovable on themii'om one side to vthe other of the cam-shai't, forvarying the point 'of cutting 0d', and for reversing the movement of theengine.

NVhenjset on one side of the cam-shaft,`tl1e engine will run one way,and when set ou tbeiother side, the

In order to insure tbejseating of each valve inde-v pendently of theother, the said wipers'may be made in twoApart-s, one lapping over theother, to be raised by it.

rlhc bevel-wheel al, on the cam-shaft Z, is made to slide into or out ofgear with the corresponding wheel on the shaft, connecting it with thedriving-shaft, and has a hand-lever, a2, for moving it. The machine isstopped by sliding this wheel out of gear, and started by turning thehand-wheel a, for' setting the valves in motion, and gearing it with theother wheel.

Fire-bricks, a, are arranged in the upper part of the lire-chamber, in away to break' and divide the lflame, for the better combination of theoxygen of the air, to produce the best efiects in combustion, the saidbriclrs being laid across and above each other, with spaces between,having abrupt turns.

-The coal may be supplied to the furnace through a tube, A4, having al'unnelrnouth, and two cut-off valves or slides, A5, one of which may bekept closed,

while the coa-l is passing the other, to prevent' tl1e'escape of thesteam and gas.

l* represents a tube, through which to light the fire; it is stopped bya screw-plug,`B5.

A, small tube may be provided for looking in, to see the condition ofthe tire, havingr a glass to prevent the escape of steam and gas.

C:` is a revolving grate, below the fire, with a projecting shaftthrough a stulng-box, and a handwheel, C, outside, for revolving it,to'discharge the ashes and cinders.

Below the grate is an ash-pit and valve, C7, for removing the ashes.

The power may be lregulated by the' quantity of nir admitted to thefire, which, as above stated, is forced in. by a pump, deriving motionfrom the engine in any preferred way.

I propose, in ysome cases, to make use of liquid fuel, and to modify thearrangement of the furnace for such fuel as' may hefonnd best.

The pistons may be used without the chambers k, if preferred.

I propose to operate this improved engine with air, forced into theheater, and therein rareiied, and the gases of combustion together, orwith the same, and the steam generated in the jackets.

When the vsteamqis not used, the temperature will not be suicient togenerate steam.

Having thus described. my invention,

I claim as new, and desire to secure by Letters Patent@ 1. Thecombination of the furnace, the vertical and horizontal water-jackets,and the cylinders lF F1, when the latter are provided withinduction-ports, leading .from the combustion-chamber, to which thesteam is first conducted'and snperheated, and exhaust-ports, and whenthc said jackets provide water and steamspaces around the furnace andcylinders, substantially as specified.

2. rlhe combination, with the water-jaclreted cylinders, of the hollowpistons, whether provided with chambers 7.: or not, when the saidhoiiowpistons have pipes communicating with the water-space G, andmaintaining a circulation in thesaid pistons, substantially asspecified. v

3. The combination, with the valves for the induction and exhaust-ports,of the hollow stems a and water-supply tank, substantially as specified.

4. ln combination withthe hollow stems a, the in-A duction and'exlzauetvalves, and .combustion-charm p bers B, the cam-shaft' Z, camsZ, wipers Z2, and tappets Z, the latter either adj ustablc or not, 'whensaid part-s are arranged substantially as herein shown and described,and for the purpose specified.

The above specification of my invention signed by me, this day of 186i).

Witnesses: ALEXANDER HENDRY.

GEORGE PEABKES, Guo. HnMmGWAY.

